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ER/L-NPT : External NPT (National Pipe Threads) full profile laydown threading inserts. ER/L - ground periphery and rake, ERB - with a chipformer and peripherally ground, ERM - with a chipformer. Used for steam, gas and water pipes.(-)External NPT (National Pipe Threads) Full Profile Laydown Threading Inserts for Steam, Gas and Water Pipes(+)

Representative Image

External right-hand shown

Representative Image

External right-hand shown

Designation	IC	TPI	RE	INSL	PDY	PDX	HAND	CICT	SC			AN	CBMD	CEDC	CNC	COATP	D1	FTDZ	GRDMFG	IFS	NIS	S	S1	SSC	THFT	TP mm								GICAT	GIREM	giic	Tough ‹————› Hard Grade & Vc Click on Grade No. for Cutting Speed
16ER 27 NPT	.375	27.0	.0016	.649	.03	.03	R~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC250 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5991737		2	IC250 IC908
16ER 18 NPT	.375	18.0	.0024	.649	.03	.04	R~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902359		4	IC228 IC250 IC908 IC1007
16ERB 18 NPT	.375	18.0	.0024	.649	.04	.04	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902822	With pressed chipformer	1	IC908
16ERM 18 NPT	.375	18.0	.0020	.649	.03	.04	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	.000~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5903397	With pressed chipformer	3	IC808 IC908 IC1007
16EL 14 NPT	.375	14.0	.0027	.649	.04	.05	L~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902122		1	IC908
16ER 14 NPT	.375	14.0	.0027	.649	.04	.05	R~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	.000~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5999136		4	IC228 IC250 IC908 IC1007
16ERB 14 NPT	.375	14.0	.0027	.649	.04	.05	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902823	With pressed chipformer	1	IC908
16ERM 14 NPT	.375	14.0	.0020	.649	.04	.05	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5921174	With pressed chipformer	5	IC50M IC250 IC808 IC908 IC1007
16EL 11.5 NPT	.375	11.5	.0035	.649	.04	.06	L~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902270		1	IC908
16ER 11.5 NPT	.375	11.5	.0035	.649	.04	.06	R~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	.000~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5901814		4	IC50M IC250 IC908 IC1007
16ERB 11.5 NPT	.375	11.5	.0035	.649	.04	.06	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902825	With pressed chipformer	1	IC908
16ERM 11.5 NPT	.375	11.5	.0035	.649	.04	.06	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	.000~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5920039	With pressed chipformer	4	IC250 IC808 IC908 IC1007
16ER 8 NPT	.375	8.0	.0047	.649	.05	.06	R~	1	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC250 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5994242		3	IC50M IC250 IC908
16ERB 8 NPT	.375	8.0	.0043	.649	.06	.07	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902826	With pressed chipformer	1	IC908
16ERM 8 NPT	.375	8.0	.0047	.649	.05	.07	R~	1	T~	~	EXT~	.0~	B~	3~	3~	~	.000~	~	IC1007~	3~	1~	.000~	.000~	16~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5920082	With pressed chipformer	4	IC250 IC808 IC908 IC1007
22ER 11.5 NPT 2M	.500	11.5	.0035	.866	.09	.14	R~	2	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	22~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902446	Multi-tooth	1	IC908
27ER 11.5 NPT 3M	.625	11.5	.0035	1.083	.13	.22	R~	3	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	27~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902447	Multi-tooth	1	IC908
27ER 8 NPT 2M	.625	8.0	.0047	1.083	.12	.19	R~	2	T~	~	EXT~	.0~	Z~	3~	3~	~	.000~	~	IC908 ~	3~	1~	.000~	~	27~	NPT60~	-~	Steel~	Stainless Steel~	Cast Iron~	Hard Materials~	Superalloys and titanium~	Carbide~	TiAlN ~	5902449	Multi-tooth	1	IC908

For Insert Identification System, click on "More Info".
For threading between walls use GRIP-type insert TIP-NPT.
National Pipe Threads ANSI/ASME B1.20.1-1983

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